GRT numbers

[ZenArchery]

I have more wildcat cartridges than standards and the only time I'v had issues with GRT is when I don't have the right input info. I can count on 1 hand how many powders are not profiled correctly but that is because they are newer and I am highly suspicious that the parent company change formula's from when powder was initially developed and later batches.

As someone stated earlier. Garbage in Garbage out. Also pay attention to bullet data varying in lengthen and weight.

What I appreciate about GRT there is a Discord community constantly working together to keep things updated.

 

[SteveOak]

How likely it is based on the grt screenshot I posted?

I reviewed the data in your screenshot and got the same results.

I use the Expert mode rather than the Compact version so that creates a potential source. I use metric at work but I am more familiar with SAE. I would encourage you to use exclusively one or the other.

The numbers publish in the VV reloading book for 284 are suspicious. The water cap for a 284 is 66 gr and for a 7mm Rem Mag is 77 and yet the published MV's for 7 Mag are significantly lower.

I believe the 284 data on the VV site is bad.